agp/via: fixup pci ids
add a new PCI ID and remove an old dodgy one, include the explaination
in the commented code so nobody readds later.
(davej also sent the pci id addition).
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
index 0ecc54d..7b36476 100644
--- a/drivers/char/agp/via-agp.c
+++ b/drivers/char/agp/via-agp.c
@@ -389,11 +389,20 @@
.device_id = PCI_DEVICE_ID_VIA_VT3324,
.chipset_name = "CX700",
},
- /* VT3336 */
+ /* VT3336 - this is a chipset for AMD Athlon/K8 CPU. Due to K8's unique
+ * architecture, the AGP resource and behavior are different from
+ * the traditional AGP which resides only in chipset. AGP is used
+ * by 3D driver which wasn't available for the VT3336 and VT3364
+ * generation until now. Unfortunately, by testing, VT3364 works
+ * but VT3336 doesn't. - explaination from via, just leave this as
+ * as a placeholder to avoid future patches adding it back in.
+ */
+#if 0
{
.device_id = PCI_DEVICE_ID_VIA_VT3336,
.chipset_name = "VT3336",
},
+#endif
/* P4M890 */
{
.device_id = PCI_DEVICE_ID_VIA_P4M890,
@@ -546,8 +555,8 @@
ID(PCI_DEVICE_ID_VIA_3296_0),
ID(PCI_DEVICE_ID_VIA_P4M800CE),
ID(PCI_DEVICE_ID_VIA_VT3324),
- ID(PCI_DEVICE_ID_VIA_VT3336),
ID(PCI_DEVICE_ID_VIA_P4M890),
+ ID(PCI_DEVICE_ID_VIA_VT3364),
{ }
};